CVE-2026-26153: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1809
Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-26153) is an out-of-bounds read in the Windows Encrypting File System (EFS) component of Windows 10 Version 1809 (build 10.0.17763.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could lead to local privilege escalation, allowing an attacker to gain higher-level permissions on the system. Microsoft has published an official fix for this vulnerability.
Potential Impact
The vulnerability allows an authorized local attacker to perform an out-of-bounds read in the EFS component, which can be leveraged to elevate privileges on the affected Windows 10 Version 1809 system. This impacts confidentiality, integrity, and availability of the system by granting higher privileges to an attacker who already has some level of access.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26153 to remediate this vulnerability. No additional mitigation actions are specified or required beyond applying the official patch.
CVE-2026-26153: CWE-125: Out-of-bounds Read in Microsoft Windows 10 Version 1809
Description
Out-of-bounds read in Windows Encrypting File System (EFS) allows an authorized attacker to elevate privileges locally.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-26153) is an out-of-bounds read in the Windows Encrypting File System (EFS) component of Windows 10 Version 1809 (build 10.0.17763.0). Exploitation requires local access with some privileges and does not require user interaction. Successful exploitation could lead to local privilege escalation, allowing an attacker to gain higher-level permissions on the system. Microsoft has published an official fix for this vulnerability.
Potential Impact
The vulnerability allows an authorized local attacker to perform an out-of-bounds read in the EFS component, which can be leveraged to elevate privileges on the affected Windows 10 Version 1809 system. This impacts confidentiality, integrity, and availability of the system by granting higher privileges to an attacker who already has some level of access.
Mitigation Recommendations
An official fix is available from Microsoft. It is recommended to apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26153 to remediate this vulnerability. No additional mitigation actions are specified or required beyond applying the official patch.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T16:24:51.135Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26153","vendor":"Microsoft"}]
Threat ID: 69de7a1682d89c981fd6a630
Added to database: 4/14/2026, 5:32:06 PM
Last enriched: 4/14/2026, 7:18:10 PM
Last updated: 4/15/2026, 7:02:28 AM
Views: 5
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